Feedforward adaptive noise control with multivariable gradient lattice filters

This work presents a novel feedforward adaptive noise control (ANC) algorithm based on multivariable gradient lattice filters to control acoustic noise or vibration globally. In addition, a gradient-based lattice for AR and FIR models and its transpose lattice for the multivariable ANC algorithm are derived. The filter has different forward and backward reflection coefficient matrices to provide a faster convergence than the gradient lattice algorithm when using the same reflection coefficient matrices. Experimental results demonstrate the effectiveness of the proposed algorithm in controlling broadband acoustic noise in an enclosure.

[1]  Graham C. Goodwin,et al.  Adaptive filtering prediction and control , 1984 .

[2]  Maciejowsk.  Multivariable Feedback Design , 1989 .

[3]  Lloyd J. Griffiths,et al.  An adaptive lattice structure for noise-cancelling applications , 1978, ICASSP.

[4]  Sen M. Kuo,et al.  Cross-coupled filtered-X LMS algorithm and lattice structure for active noise control systems , 1993, 1993 IEEE International Symposium on Circuits and Systems.

[5]  S. Haykin,et al.  Adaptive Filter Theory , 1986 .

[6]  F. Jabbari,et al.  Vector-channel lattice filters and identification of flexible structures , 1988 .

[7]  M. O. Tokhi,et al.  Active noise control systems , 1987 .

[8]  Philip A. Nelson,et al.  Active Control of Sound , 1992 .

[9]  Shyh-Biau Jiang,et al.  An unwindowed multichannel lattice filter with orthogonal channels , 1995, IEEE Trans. Signal Process..

[10]  J. S. Gibson,et al.  A New Unwindowed Lattice Filter for RLS Estimation , 1991, 1991 American Control Conference.

[11]  Fuyun Ling,et al.  Advanced Digital Signal Processing , 1992 .

[12]  Paul Sas,et al.  Adaptive active control of noise in 3-D reverberant enclosures , 1993 .

[13]  J.S. Gibson,et al.  Adaptive Identification of a Flexible Structure by a New Multichannel Lattice Filter , 1992, 1992 American Control Conference.

[14]  Bernard Widrow,et al.  Adaptive Signal Processing , 1985 .

[15]  L. Griffiths.  A continuously-adaptive filter implemented as a lattice structure , 1977 .

[16]  Masato Miyoshi,et al.  Active control of broadband random noise in a reverberant three-dimensional space , 1991 .